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Finding the Fourth Proportional to 73,689,039.40, 110,320,982.70 and 73,689,039.40

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Solution

The fourth proportional to 73,689,039.40, 110,320,982.70 and 73,689,039.40 is: 110,320,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,689,039.40 : 110,320,982.70 = 73,689,039.40 : x
  2. Step 2: Convert to fraction form
    73,689,039.40/110,320,982.70 = 73,689,039.40/x
  3. Step 3: Cross multiply
    73,689,039.40x = 110,320,982.70 × 73,689,039.40
  4. Step 4: Simplify right side
    73,689,039.40x = 8,129,447,240,827,019
  5. Step 5: Solve for x
    x = 8,129,447,240,827,019/73,689,039.40
  6. Step 6: Final answer
    x = 110,320,982.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.